Does Anyone Know Anything About These Plants

[black molly3]

i got them today they were in a pot.
there called cryptocoryne bullosa and the other one is called
rotala wallichii.
can anyone tell me any info on them please. it would be so much use to me

 

[RadaR]

Rotala Wallichii

i dont think ive heard of that crypt.

 

[Castellop123]

s...